Cultivator-tooth clamp.



C. E. BEAN.

CULTIVATOR TOOTH CLAMP.

APPLICATION FILED Nov. 4, 1913A 1,113,298. Patented o@t.13,1914.

nu" gg xmmbmlll rrED STATMENT oruICE.l

CHARLES E. BEAN, or Los ANGELES, CALIFORNIA, AssIorNoE rro EIL'LIEEEi/IANUEAC- LOS ANGELES,

specincanon of Letters Patent.

CALIFORNIA, l A yCCE,roEA'rIoN orv rCALI- Patented oet. 13, 1914..

Application led November 4, 1913. Serial No. 799,128.

To all 'whom t may concern Be it known that I, CHARLES E. BEAN, a citizen of 'the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented .a new and useful Cultivator- Tooth Clamp, of which the following is a specification.

This invention relates to a clamp for attaching teeth to cultivators or the like, and one object of the invention is to provide for readily adjusting the elevation of the tooth.

Another object is to provide a clamp which will exert pressure against all four faces of the shank of the tooth and thereby firmly hold the tooth in position.

Referring to the drawings: Figure l is a perspective view of a cultivator providedwith my improved clamp. Fig. 2 is a plan view of the clamp. Fig. 3 isa perspective view in detail of the clamp and tooth. Fig. 4 is a horizontal section on line ait-*m4, Fig. 3. Fig. 5 is a perspective view of one of the clamp members. Fig. 6 is a perspective view of the other clamp member. Fig. 7 is a transverse section through one of the lower heads.

rlhe frame of the cultivator comprises a, pair ofl rearwardly diverging frame members 1, each frame member 1 comprising two bars 2 which are arranged parallel with each other.

3 designates theshank of the cultivator tooth and 3 designates' the blade which, as hereiny shown, is made separate from the shank 3. lIhe shank 3 is rectangular in cross section, as shown in Figs. 2 and 4, and is clamped between two yclamp members 5 and 6, shown in detail respectively in Figs. 5 and 6. The clamp member 5 comprises upper and lower heads 7 and 8, each head having laterally projecting flanges 9, which proj ect'over and fit against the edges of the bars 2. The upper head 7 is wedge shaped and at its thicker end is provided with a transverse groove 10. The lower head is also wedge shaped. The clamp member 5 is formed with a vertical recess 11 with a wide face 12 and a narrower face 13, these two faces being at right angles to each other, and the two faces also being at an angle to the two bars 2, as clearly shown in Figs. 2 and 4. Clamp member 6 is very similar `in construction, except that its lower head 8u has a groove 10 and its upper and lower heads 14 and l5 respectively are provided with flanges 9a, similar to the flanges 9. The

clamp member 6 also has a recess 1la with faces 12aN 18a. The shoulders formed by the flanges 9. and 9a are at a slight angle to the recesses 11 and 11, vso that when the shank 3 of the 'tooth is gripped between the clamp members, it causes the shank to standat a slight angle, as shown in Figs. 1 and 3, with the lower end of forward. o

The .two clamp members 5 and 6 are the tooth projected slightly clamped together vby means extending diagoy nally across. themembers from groove 10 to groove 10, such means, as herein shown,

comprising a shackle bolt 16, the bow of which engagesthe groovelOa, and the cross bar 17 which engages the groove 10, while the side members of the shackle bolt extend up outside of the respective frame bars 2, so that when the shackle bolt is drawn tight, it firmly forces the clamp members against the tooth in opposing directions and causes a clamping pressure to beexerted against all four faces of the shank of the tooth. The flanges on the clamping members `serve to hold the clamping members in perfect position againstrocking-on the bars 2, and the tooth is positively held in the position desired. Bolts 18 extend through theframe bars 2, on opposite sides of the clamping members, as clearly shown in Figs. 1 and 4. These bolts positively prevent movement of the clamps in a direction longitudinally of the frame bars 2. f y

y Vhat I claim is:

1. In combination with the parallel frame bars, a pair of clamping members between said bars, each clamping member having a recess with two faces at an angle to each other, the two faces ofueach clamping member being also at an angle to the said frame bars, a tooth shank lying within the recesses between said clamping members, and means extending diagonally across lthe clamping members, outside of the frame bars and engaging diagonally opposite corners of the` said clamping members forholding the said clamping members together.

Y 2. In combination with the parallel frame bars, a pair of clamping members between said bars, each clamping member having a recess with two faces at an angle to each other, the two faces of each clamping member being also at an angle to the said frame bars, a tooth shank lying within the recesses clamping members together, each of said clamping members having laterally extending flanges on their upper and lower ends which project over the said frame bars.

8. In combination with the parallel frame bars, two Clamping members between said bars, each of said clamping members having a recess with two faces at right angles to each other, both of said faces being at angles to the frame bars, a tooth shank between the said members and engaged in the said recesses, one of said members having a transverse groove in the outer corner thereof, and the other member having a transverse groove in the corner thereof, diagonally opposite the groove of the other member, and a shackle bolt extending diagonallyacross between the two members outside the frame bars, and engaging in the said two grooves.

el. In combination with the parallel frame bars, a pair of clamping members between said bars, each clamping member having a recess with two lfaces at an angle to each other, the two faces of each clamping member being also atan angle to the said frame bars, a tooth shank lying within the recesses between said clamping members, means eX-` CHARLES E. BEAN.

In presence of- GEORGE T. HACKLEY,

LORRAINE E. DURROW.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

